-Wformat should depend on format-extra-args so that -Wformat implies the extra argument warnings, and -Wformat -Wno-format-extra-args turns on -Wformat but not the extra-args warnings.
-Wformat should depend on format-extra-args so that -Wformat implies
the extra argument warnings, and -Wformat -Wno-format-extra-args
turns on -Wformat but not the extra-args warnings.


git-svn-id: ffe668792ed300d6c2daa1f6eba2e0aa28d7ec6c@70363 91177308-0d34-0410-b5e6-96231b3b80d8

llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,llvm-mirror/clang,apple/swift-clang,apple/swift-clang,apple/swift-clang